A - Human Necessities – 41 – D
Patent
A - Human Necessities
41
D
2/81
A41D 13/00 (2006.01)
Patent
CA 1296488
ABSTRACT OF THE DISCLOSURE A mouthguard, comprising a generally resilient member having at least an upper U-shape portion corresponding generally to the shape of the arch of the upper jaw, into which both the upper and lower teeth are significantly spaced and stabilized together, with at least the lower molars and lower second bicuspids interdigitated into the underside of the upper portion. A generally resilient shoulder extending downward unitarily from the posterior region of the lower surface of the bottom portion has a lower planar surface unitarily thereon spaced generally parallel to the upper surface in the molars-second bicuspid areas for separating the upper and lower molar-bicuspid areas, and has a width greater than the width of the lower molars-second bicuspid, extending laterally across the full width of the lower molars-second bicuspid. An upper surface unitarily included on the bottom portion is deformed by the upper teeth, including the upper molars, for forming an impression to conform thereto, and the lower planar surface of the shoulder is deformable by at least the molars-second bicuspid of the lower teeth for inter- digitation between the upper teeth, including the upper molars, at least the lower molars-second bicuspid and the resilient member, to stabilize the lower teeth in a position of centric rest. A second embodiment includes a lower, integral U-shaped resilient member covering all of the lower teeth with a rela- tively large, central opening for easy breathing between the upper and lower members.
554844
Scott L. King
Swabey Ogilvy Renault
LandOfFree
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